1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _LINUX_TYPES_H |
3 | #define _LINUX_TYPES_H |
4 | |
5 | #define |
6 | #include <uapi/linux/types.h> |
7 | |
8 | #ifndef __ASSEMBLY__ |
9 | |
10 | #define DECLARE_BITMAP(name,bits) \ |
11 | unsigned long name[BITS_TO_LONGS(bits)] |
12 | |
13 | #ifdef __SIZEOF_INT128__ |
14 | typedef __s128 s128; |
15 | typedef __u128 u128; |
16 | #endif |
17 | |
18 | typedef u32 __kernel_dev_t; |
19 | |
20 | typedef __kernel_fd_set fd_set; |
21 | typedef __kernel_dev_t dev_t; |
22 | typedef __kernel_ulong_t ino_t; |
23 | typedef __kernel_mode_t mode_t; |
24 | typedef unsigned short umode_t; |
25 | typedef u32 nlink_t; |
26 | typedef __kernel_off_t off_t; |
27 | typedef __kernel_pid_t pid_t; |
28 | typedef __kernel_daddr_t daddr_t; |
29 | typedef __kernel_key_t key_t; |
30 | typedef __kernel_suseconds_t suseconds_t; |
31 | typedef __kernel_timer_t timer_t; |
32 | typedef __kernel_clockid_t clockid_t; |
33 | typedef __kernel_mqd_t mqd_t; |
34 | |
35 | typedef _Bool bool; |
36 | |
37 | typedef __kernel_uid32_t uid_t; |
38 | typedef __kernel_gid32_t gid_t; |
39 | typedef __kernel_uid16_t uid16_t; |
40 | typedef __kernel_gid16_t gid16_t; |
41 | |
42 | typedef unsigned long uintptr_t; |
43 | typedef long intptr_t; |
44 | |
45 | #ifdef CONFIG_HAVE_UID16 |
46 | /* This is defined by include/asm-{arch}/posix_types.h */ |
47 | typedef __kernel_old_uid_t old_uid_t; |
48 | typedef __kernel_old_gid_t old_gid_t; |
49 | #endif /* CONFIG_UID16 */ |
50 | |
51 | #if defined(__GNUC__) |
52 | typedef __kernel_loff_t loff_t; |
53 | #endif |
54 | |
55 | /* |
56 | * The following typedefs are also protected by individual ifdefs for |
57 | * historical reasons: |
58 | */ |
59 | #ifndef _SIZE_T |
60 | #define _SIZE_T |
61 | typedef __kernel_size_t size_t; |
62 | #endif |
63 | |
64 | #ifndef _SSIZE_T |
65 | #define _SSIZE_T |
66 | typedef __kernel_ssize_t ssize_t; |
67 | #endif |
68 | |
69 | #ifndef _PTRDIFF_T |
70 | #define _PTRDIFF_T |
71 | typedef __kernel_ptrdiff_t ptrdiff_t; |
72 | #endif |
73 | |
74 | #ifndef _CLOCK_T |
75 | #define _CLOCK_T |
76 | typedef __kernel_clock_t clock_t; |
77 | #endif |
78 | |
79 | #ifndef _CADDR_T |
80 | #define _CADDR_T |
81 | typedef __kernel_caddr_t caddr_t; |
82 | #endif |
83 | |
84 | /* bsd */ |
85 | typedef unsigned char u_char; |
86 | typedef unsigned short u_short; |
87 | typedef unsigned int u_int; |
88 | typedef unsigned long u_long; |
89 | |
90 | /* sysv */ |
91 | typedef unsigned char unchar; |
92 | typedef unsigned short ushort; |
93 | typedef unsigned int uint; |
94 | typedef unsigned long ulong; |
95 | |
96 | #ifndef __BIT_TYPES_DEFINED__ |
97 | #define __BIT_TYPES_DEFINED__ |
98 | |
99 | typedef u8 u_int8_t; |
100 | typedef s8 int8_t; |
101 | typedef u16 u_int16_t; |
102 | typedef s16 int16_t; |
103 | typedef u32 u_int32_t; |
104 | typedef s32 int32_t; |
105 | |
106 | #endif /* !(__BIT_TYPES_DEFINED__) */ |
107 | |
108 | typedef u8 uint8_t; |
109 | typedef u16 uint16_t; |
110 | typedef u32 uint32_t; |
111 | |
112 | #if defined(__GNUC__) |
113 | typedef u64 uint64_t; |
114 | typedef u64 u_int64_t; |
115 | typedef s64 int64_t; |
116 | #endif |
117 | |
118 | /* this is a special 64bit data type that is 8-byte aligned */ |
119 | #define aligned_u64 __aligned_u64 |
120 | #define aligned_be64 __aligned_be64 |
121 | #define aligned_le64 __aligned_le64 |
122 | |
123 | /** |
124 | * The type used for indexing onto a disc or disc partition. |
125 | * |
126 | * Linux always considers sectors to be 512 bytes long independently |
127 | * of the devices real block size. |
128 | * |
129 | * blkcnt_t is the type of the inode's block count. |
130 | */ |
131 | typedef u64 sector_t; |
132 | typedef u64 blkcnt_t; |
133 | |
134 | /* |
135 | * The type of an index into the pagecache. |
136 | */ |
137 | #define pgoff_t unsigned long |
138 | |
139 | /* |
140 | * A dma_addr_t can hold any valid DMA address, i.e., any address returned |
141 | * by the DMA API. |
142 | * |
143 | * If the DMA API only uses 32-bit addresses, dma_addr_t need only be 32 |
144 | * bits wide. Bus addresses, e.g., PCI BARs, may be wider than 32 bits, |
145 | * but drivers do memory-mapped I/O to ioremapped kernel virtual addresses, |
146 | * so they don't care about the size of the actual bus addresses. |
147 | */ |
148 | #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT |
149 | typedef u64 dma_addr_t; |
150 | #else |
151 | typedef u32 dma_addr_t; |
152 | #endif |
153 | |
154 | typedef unsigned int __bitwise gfp_t; |
155 | typedef unsigned int __bitwise slab_flags_t; |
156 | typedef unsigned int __bitwise fmode_t; |
157 | |
158 | #ifdef CONFIG_PHYS_ADDR_T_64BIT |
159 | typedef u64 phys_addr_t; |
160 | #else |
161 | typedef u32 phys_addr_t; |
162 | #endif |
163 | |
164 | typedef phys_addr_t resource_size_t; |
165 | |
166 | /* |
167 | * This type is the placeholder for a hardware interrupt number. It has to be |
168 | * big enough to enclose whatever representation is used by a given platform. |
169 | */ |
170 | typedef unsigned long irq_hw_number_t; |
171 | |
172 | typedef struct { |
173 | int counter; |
174 | } atomic_t; |
175 | |
176 | #define ATOMIC_INIT(i) { (i) } |
177 | |
178 | #ifdef CONFIG_64BIT |
179 | typedef struct { |
180 | s64 counter; |
181 | } atomic64_t; |
182 | #endif |
183 | |
184 | typedef struct { |
185 | atomic_t refcnt; |
186 | } rcuref_t; |
187 | |
188 | #define RCUREF_INIT(i) { .refcnt = ATOMIC_INIT(i - 1) } |
189 | |
190 | struct list_head { |
191 | struct list_head *next, *prev; |
192 | }; |
193 | |
194 | struct hlist_head { |
195 | struct hlist_node *first; |
196 | }; |
197 | |
198 | struct hlist_node { |
199 | struct hlist_node *next, **pprev; |
200 | }; |
201 | |
202 | struct ustat { |
203 | __kernel_daddr_t f_tfree; |
204 | #ifdef CONFIG_ARCH_32BIT_USTAT_F_TINODE |
205 | unsigned int f_tinode; |
206 | #else |
207 | unsigned long f_tinode; |
208 | #endif |
209 | char f_fname[6]; |
210 | char f_fpack[6]; |
211 | }; |
212 | |
213 | /** |
214 | * struct callback_head - callback structure for use with RCU and task_work |
215 | * @next: next update requests in a list |
216 | * @func: actual update function to call after the grace period. |
217 | * |
218 | * The struct is aligned to size of pointer. On most architectures it happens |
219 | * naturally due ABI requirements, but some architectures (like CRIS) have |
220 | * weird ABI and we need to ask it explicitly. |
221 | * |
222 | * The alignment is required to guarantee that bit 0 of @next will be |
223 | * clear under normal conditions -- as long as we use call_rcu() or |
224 | * call_srcu() to queue the callback. |
225 | * |
226 | * This guarantee is important for few reasons: |
227 | * - future call_rcu_lazy() will make use of lower bits in the pointer; |
228 | * - the structure shares storage space in struct page with @compound_head, |
229 | * which encode PageTail() in bit 0. The guarantee is needed to avoid |
230 | * false-positive PageTail(). |
231 | */ |
232 | struct callback_head { |
233 | struct callback_head *next; |
234 | void (*func)(struct callback_head *head); |
235 | } __attribute__((aligned(sizeof(void *)))); |
236 | #define rcu_head callback_head |
237 | |
238 | typedef void (*rcu_callback_t)(struct rcu_head *head); |
239 | typedef void (*call_rcu_func_t)(struct rcu_head *head, rcu_callback_t func); |
240 | |
241 | typedef void (*swap_r_func_t)(void *a, void *b, int size, const void *priv); |
242 | typedef void (*swap_func_t)(void *a, void *b, int size); |
243 | |
244 | typedef int (*cmp_r_func_t)(const void *a, const void *b, const void *priv); |
245 | typedef int (*cmp_func_t)(const void *a, const void *b); |
246 | |
247 | #endif /* __ASSEMBLY__ */ |
248 | #endif /* _LINUX_TYPES_H */ |
249 | |